//
//  head.swift
//  weibosina
//
//  Created by hwm on 16/8/28.
//  Copyright © 2016年 hwm. All rights reserved.
//

import Foundation

import UIKit

let screenBounds =  UIScreen.mainScreen().bounds
let screenWidth =  screenBounds.size.width
let screenHeight = screenBounds.size.height

// 定义一个变量保存用户当前是否登录
